SynthMaster One

SynthMaster One is a wavetable software synthesizer for shaping and sequencing sounds on desktop and iOS. The desktop version includes 1,250 factory presets. Each desktop instance has two oscillators, two sub oscillators, two filters, four ADSR envelopes, two LFOs, a 16-step arpeggiator/sequencer, and 11 effect types. Users can import wavetable files and add them to the library, and the instrument supports Scala tuning files and drag-and-drop MIDI patterns in its arpeggiator. The desktop version runs as a VST instrument on Windows and Mac, as an Audio Unit instrument on Mac, and as a standalone application on Windows. The iOS app supports AudioUnits V3 for multiple instances in compatible DAWs, and can import and export presets, waveforms, and scales through the Files app on iOS 11 or later. The maker says users can synchronize presets, waveforms, samples, favourites, and MIDI programs across machines and platforms. The iOS version has 16-voice polyphony and 650 presets, compared with 32 voices and 1,250 presets on desktop. Desktop costs $49.00 once; iPhone-only and universal iOS apps are also listed.

SynthMaster One pairs wavetable synthesis with preset, sequencing, and plugin options across desktop and iOS. Check the version-specific limits and demo restrictions before choosing a purchase.

SynthMaster One may suit music makers who want a wavetable instrument with preset libraries, sound-shaping controls, and sequencing tools. Its desktop and iOS versions offer different voice and preset counts, so compare those limits with the intended setup.

SynthMaster One is a wavetable synthesizer for Windows, macOS and iOS, aimed at producers who want to shape sounds as well as play presets. The desktop edition is the strongest choice for deeper work, while the iOS options lower the entry cost with reduced capacity.

Overview

KV331 Audio’s instrument balances an accessible workflow with a substantial desktop engine. Each desktop instance brings oscillators, filters, modulation, sequencing and effects together, and users can expand the wavetable library with their own files. That combination suits producers who want one instrument for preset exploration and sound design rather than a simple preset player.

The versions differ in meaningful ways. Desktop provides 32-voice polyphony and 1,250 factory presets; iOS offers 16 voices and 650 presets. The mobile edition is still capable of running in compatible DAWs, but it is not a full-capacity substitute for desktop.

Key features

• Wavetable import: Import wavetable files or add them to the SynthMaster One Waveforms folder. This lets sound designers extend the included library with their own material.
• Desktop sound engine: Each instance includes two oscillators, two sub oscillators, two filters, four ADSR envelopes, two LFOs, a 16-step arpeggiator/sequencer and 11 effect types. The range gives users several stages of sound shaping and pattern work within one instrument.
• MIDI and tuning: Scala tuning files are supported, and MIDI patterns can be dragged into the arpeggiator. That makes the sequencer more useful to musicians working with existing patterns or alternate tunings.
• Preset and waveform sync: The maker says users can synchronize presets, waveforms, samples, favourites and MIDI programs across machines and platforms. This is useful for moving work between desktop and mobile setups.
• iOS DAW support: The app supports AudioUnits V3 and multiple instances in compatible hosts including GarageBand, Cubasis and Beat Maker. It can also import and export presets, waveforms and scales through the Files app on iOS 11 or later.
• Desktop formats: Windows supports VST instruments and a standalone application; macOS supports VST and Audio Unit instruments. iOS uses Audio Unit instruments.

Pricing

The iPhone-only app is free and includes 650 presets with 16-voice polyphony, but it runs on iPhone, not iPad. It is a low-risk way for iPhone users to explore the instrument, not a replacement for desktop’s larger library and voice count.

The universal iOS app costs $$9.99 once and runs on iPhone and iPad. It retains the iOS limits of 650 presets and 16 voices, making it the more practical mobile purchase for users who want tablet support or DAW integration.

The desktop version costs $$49 once for Mac and Windows. It includes 1,250 presets and 32-voice polyphony, so it is the best fit for users who expect to build fuller arrangements or do more involved sound design. There is also a demo, but it disables preset saving, stops working after 15 minutes and includes 650 factory presets; those restrictions make it useful for an initial look, not sustained project work.

Platforms

SynthMaster One runs on Windows, macOS and iOS. Desktop users can use it as a plugin, with a standalone option on Windows; iOS users can load multiple AudioUnits V3 instances in supporting DAWs. KV331 Audio directs product-support issues to the contact form on its support page.

Who it's for

Choose SynthMaster One if you want a wavetable instrument with preset depth, user-imported waveforms and a built-in arpeggiator/sequencer. Desktop is the better match for producers who value the larger preset library and higher polyphony. The universal iOS app makes sense for musicians who want to use it on both iPhone and iPad, while the free iPhone edition suits a narrower, no-cost trial on that device.

Look elsewhere if your priority is a free instrument, a Linux version or a different synthesis workflow; several alternatives below cover those needs.

Pros and cons

• Pro: The desktop engine combines two oscillators, two sub oscillators, dual filters, modulation, sequencing and 11 effect types, giving sound designers a broad toolkit in one plugin.
• Pro: Wavetable imports, Scala tuning and drag-and-drop MIDI patterns support users who want to bring their own material into the instrument.
• Pro: The universal iOS app supports iPhone, iPad and multiple instances in compatible DAWs, so mobile use can extend beyond standalone playing.
• Con: iOS has half the desktop polyphony and 600 fewer factory presets, a real trade-off for users who need the desktop edition’s capacity.
• Con: The free iPhone app cannot run on iPad, limiting its usefulness for tablet-based setups.
• Con: The demo’s 15-minute cutoff and disabled preset saving prevent it from serving as a comfortable ongoing workflow.

Alternatives

Browse software synthesizers for more options across the category.

• DefleMask is an option for readers who want a freemium synthesizer across desktop and mobile platforms.
• SynthMaster 2 is another KV331 Audio synthesizer for readers comparing the maker’s other instrument.
• Vital is worth considering for Linux users or anyone seeking a free tier with 75 presets, 25 wavetables and full synth features.
• Cardinal suits readers who want a free, open-source option with built-in modules, though modules cannot be added to an existing build.
• Dexed is a free alternative for readers comfortable with GPL v3 software.
• Surge XT is a free, open-source plugin for Windows, macOS and Linux.
• Synth1 is a free VSTi/AU plugin for Windows and macOS.
• VCV Rack is a freemium, open-source option for readers seeking a modular rack with a free standalone tier.

Verdict

SynthMaster One is a strong fit for producers who want wavetable sound design, a large desktop preset library and an integrated sequencer in a VST or Audio Unit instrument. Its main reason to choose another option is the gap between desktop and iOS capacity—or the need for a free, Linux-compatible instrument. Choose the desktop edition for its fuller engine; choose iOS when portability matters more than the reduced voices and presets.